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Planetary gear train of automatic transmission for vehicles

A technology of automatic transmission and planetary gear train, applied in the direction of vehicle transmission, vehicle components, gear transmission, etc., can solve the problems of installability, cost, weight, deterioration of transmission efficiency, etc., to improve power transmission performance and fuel efficiency Effect

Active Publication Date: 2016-07-27
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in an automatic transmission, the number of internal parts increases as the shift stage increases, so mountability, cost, weight, transmission efficiency, etc. still deteriorate

Method used

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  • Planetary gear train of automatic transmission for vehicles
  • Planetary gear train of automatic transmission for vehicles
  • Planetary gear train of automatic transmission for vehicles

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Embodiment Construction

[0026] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention has been described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims .

[0027] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] However, throughout this specification, in order to clearly describe the exemplary embodiments of the present invention, parts irrelevant to the description are omitted, and the same reference numerals ref...

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Abstract

A planetary gear train of an automatic transmission may include an input shaft, a first planetary gear set including a first sun gear, a first planetary carrier, and a first ring gear, a second planetary gear set including a second sun gear, a second planetary carrier, and a second ring gear, a third planetary gear set including a third sun gear, a third planetary carrier, and a third ring gear, a fourth planetary gear set including a fourth sun gear, a fourth planetary carrier, and a fourth ring gear, a fifth planetary gear set including a fifth sun gear, a fifth planetary carrier, and a fifth ring gear, first to ninth rotational shafts, and six friction elements selectively connecting the rotational shafts and the rotational shaft and the transmission housing.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2014-0126787 filed on September 23, 2014, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to an automatic transmission for a vehicle, and more particularly, to a planetary gear train for an automatic transmission for a vehicle that realizes a forward 12 speed with a minimum configuration to improve power transmission performance and reduce fuel efficiency. Background technique [0004] In recent years, rising oil prices have created a scramble to enter an infinite race to improve fuel efficiency. [0005] Therefore, for engines, research has been conducted on reducing weight and improving fuel efficiency through downsizing, and for automatic transmissions, research has been conducted on simultaneously securing operability and fuel efficiency compet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/66
CPCF16H3/666F16H2200/0078F16H2200/2015F16H2200/2046F16H3/44F16H3/62F16H3/66F16H2200/0082
Inventor 黄圣旭成源晙鞠再昌赵源珉卢明勋池晟旭徐罡寿
Owner HYUNDAI MOTOR CO LTD
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